Perhaps you should try some spelling variations:
"re decolonization africa" » "re democratization africa", "box decolonization africa", "war decolonization africa", "_ decolonisation africa"
"_ decolonization israel" » "_ colonization israel", "_ decolonization islam", "_ decolonization across", "decolonization _ israel"
"re colonization history" » "re communication history", "re organization history", "re cooperation history", "pro colonization history", "_ colonization history", "jews colonization history"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"re decolonization africa\") OR (\"_ decolonization israel\"))) OR (\"re colonization history\"))~".
• Removing quotes may allow a broader search: (((( re decolonization africa ) OR ( _ decolonization israel ))) OR ( re colonization history ))~.
• Adding a wildcard symbol may retrieve word variants: (((("re decolonization africa") OR ("_ decolonization israel"))) OR ("re colonization history"))*.